(20) Abiathar.—Of those who dwelt at Nob, only one single priest, Abiathar, Ahimelech’s son, seems to have escaped this general massacre. It has been suggested that when his father and the whole body of priests went to Gibeah, in accordance with the summons of King Saul, Abiathar remained behind to perform the necessary functions in the sanctuary, and when he heard of the death of his father and his brother priests, he made his escape, and eventually joined David. The exact period of his coming to the exiled band under David is uncertain; in many of the recitals in this Book no note of time is given. It is, therefore, probable that the meeting and interview with David—related in 1Samuel 22:20 and following verses—did not take place immediately after the massacre at Gibeah, nor even directly after the destruction of Nob. From the statement in 1Samuel 22:6 of 1 Samuel 23, it would appear that Abiathar only joined David at Keilah. From that time, however, Abiathar, who became after his father’s death high priest, occupies an important place in the story of David’s life. Throughout his reign he continued his faithful friend, and seems to have been a worthy holder of his important office. The close of his life, however, was a melancholy one. In the troubles which arose about the succession, in the last days of David’s reign, he espoused the side of Adonijah, and was in consequence deposed by the successful Solomon from the high priesthood, and sent into banishment to Anathoth. (See 1Kings 2:26.)

1 Samuel 22:20. Abiathar escaped and fled after David — He, by his father’s death, was now high-priest, and is the person referred to Mark 2:26, where we find him described by an office which he did not bear till after the event alluded to, Ahimelech, as we have seen, being high-priest when David took the show-bread.

In what has been just related we have a remarkable instance of God’s turning the worst devices of the wicked to the purposes of his providence; for in all this was fulfilled the threatening denounced by the Lord against the house of Eli; because his sons made themselves vile, and he restrained them not; see 1 Samuel 2:31; and 1 Samuel 3:13.

22:20-23 David greatly lamented the calamity. It is great trouble to a good man to find himself any way the cause of evil to others. He must have been much pained, when he considered that his falsehood was one cause of this fatal event. David speaks with assurance of his own safety, and promises that Abiathar should have his protection. With the Son of David, all who are his may be sure they shall be in safeguard, Ps 91:1. In the hurry and distraction David was continually in, he found time for communion with God, and found comfort in it.Abiathar - He may have remained at Nob to take care of the sanctuary when the other priests went to Saul, and so escaped. He continued David's faithful friend throughout his reign 1 Samuel 23:9; 1 Samuel 30:7; 2 Samuel 15:24, 2 Samuel 15:29, 2 Samuel 15:35, but gave offence by taking Adonijah's part against Solomon 1 Kings 1:7, 1 Kings 1:19, 1 Kings 1:42, and in consequence was deprived of the high priesthood 1 Kings 2:26-27. In Mark 2:26, he is spoken of as the High Priest who gave the showbread to David. Perhaps he was the instigator of this act of kindness to David; and for this cause, as well as his constancy to David, is mentioned by our Lord instead of Ahimelech. It is also possible that, as sagan to his father, he may have performed most of the priestly functions, as Hophni and Phinehas did in the lifetime of Eli. Abiathar did not actually join David until he went to Keilah (marginal reference). 1Sa 22:20-23. Abiathar Escapes and Flees after David.

20-23. one of the sons of Ahimelech … escaped—This was Abiathar, who repaired to David in the forest of Hareth, rescuing, with his own life, the high priest's vestments (1Sa 23:6, 9). On hearing his sad tale, David declared that he had dreaded such a fatal result from the malice and intriguing ambition of Doeg; and, accusing himself as having been the occasion of all the disaster to Abiathar's family, David invited him to remain, because, firmly trusting himself in the accomplishment of the divine promise, David could guarantee protection to him.

Abiathar, by his father’s death, was now high priest,

Fled after David, to Keilah, 1 Samuel 23:6,7.

And one of the sons of Ahimelech, the son of Ahitub, named Abiathar, escaped,.... Who very probably was left by his father to take care of the sanctuary, and the holy things in it, when he and the rest of the priests were summoned to appear before Saul; who having heard of his bloody execution of them, before his messengers could get to Nob, took, the ephod, with the Urim and Thummim, and made his escape, as appears from 1 Samuel 23:6; this man succeeded his father in the high priesthood, and continued in it until the times of Solomon:

and fled after David; who was now removed, or removing from the forest of Hareth to Keilah, whither Abiathar followed him, and came to him there, 1 Samuel 23:6, and with whom only he could be safe, and therefore it was right to flee unto him.

And one of the sons of Ahimelech the son of Ahitub, named Abiathar, {l} escaped, and fled after David.

(l) This was God's providence, who according to his promise preserved some of the house of Eli, 1Sa 2:33.